Product Registration (End-users Only)Manage your VELP product with an online Account. Register and get exclusive benefits, including direct assistance, short response for service and rapid spare parts identification.

Product Registration (End-users Only)Manage your VELP product with an online Account. Register and get exclusive benefits, including direct assistance, short response for service and rapid spare parts identification.

Kjeldahl Distillation Units

The distillation unit is used to perform nitrogen analysis and protein determination according to Kjeldahl method in food&feed industry and other applications in environmental and chemical industries after having digested the sample accurately.

Kjeldahl analysis method
- Add distilled / deionized water to the digested sample
This dilutes the sample
In this way it’s easier to detect all the ammonia
- Separate the nitrogen from the digested mixture by steam distilling
Extracts ammonia from the alkaline solution
- Raise the pH of the digested mixture using sodium hydroxide
Converts NH4+ (in solid format) into NH3 (gaseous)
This will be detected with titration
- Trap the distilled vapors in a dedicated solution of boric acid
Traps all the nitrogen, eliminating the risk of loss